CSS LABORATORIES, INC. MAXSYS 462, 4/100 VL Processor 80486SX/80487SX/80486DX/80486DX2/Pentium Overdrive Processor Speed 25/33/50(internal)/50/66(internal)MHz Chip Set OPTI Max. Onboard 256MB DRAM Cache 64/128/256/512KB BIOS Unidentified Dimensions 355mm x 305mm I/O Options 32-bit VESA local bus slot, CPU slot, floppy drive interface, IDE interface, parallel port, auxiliary parallel port, serial ports (2), auxiliary serial ports (2), auxiliary keyboard connectors (2) NPU Options 4167 [Image] CONNECTIONS Purpose Location Purpose Location Speaker J4 Parallel port PJ2 Power LED & keylock J5 Serial port 1 PJ3 Front panel J39 Serial port 2 PJ4 connector External IDE J40 IDE interface PJ5 interface LED Reset switch J41 pins 1 & Auxiliary parallel PJ2A 2 port Turbo switch J41 pins 3 & Auxiliary serial PJ3A 4 port 1 Auxiliary keyboard J11B Auxiliary serial PJ4A connector port 2 Auxiliary keyboard J11A CPU slot SL1 connector IDE interface LED LED 32-bit VESA local SL2 bus slot Floppy drive PJ1 interface USER CONFIGURABLE SETTINGS Function Jumper Position Floppy drive interface enabled FDD pins 2 & 3 closed Floppy drive interface disabled FDD pins 1 & 2 closed IDE interface enabled IDE pins 2 & 3 closed IDE interface disabled IDE pins 1 & 2 closed » CPU type select synchronous JP1 pins 1 & 2 closed CPU type select asynchronous JP1 pins 2 & 3 closed Monitor type select color JP9 pins 2 & 3 closed Monitor type select monochrome JP9 pins 1 & 2 closed » Factory configured - do not alter JP20 Open DRAM CONFIGURATION Size Bank 0 Bank 1 Bank 2 Bank 3 4MB (4) 1M x 9 NONE NONE NONE 8MB (4) 1M x 9 (4) 1M x 9 NONE NONE 12MB (4) 1M x 9 (4) 1M x 9 (4) 1M x 9 NONE 16MB (4) 1M x 9 (4) 1M x 9 (4) 1M x 9 (4) 1M x 9 16MB (4) 4M x 9 NONE NONE NONE 20MB (4) 1M x 9 (4) 4M x 9 NONE NONE 24MB (4) 1M x 9 (4) 1M x 9 (4) 4M x 9 NONE 24MB (4) 1M x 9 (4) 4M x 9 (4) 1M x 9 NONE 28MB (4) 1M x 9 (4) 1M x 9 (4) 4M x 9 (4) 1M x 9 28MB (4) 1M x 9 (4) 4M x 9 (4) 1M x 9 (4) 1M x 9 32MB (4) 4M x 9 (4) 4M x 9 NONE NONE 36MB (4) 1M x 9 (4) 4M x 9 (4) 4M x 9 NONE 36MB (4) 4M x 9 (4) 4M x 9 (4) 1M x 9 NONE 40MB (4) 1M x 9 (4) 1M x 9 (4) 4M x 9 (4) 4M x 9 40MB (4) 1M x 9 (4) 4M x 9 (4) 4M x 9 (4) 1M x 9 40MB (4) 4M x 9 (4) 4M x 9 (4) 1M x 9 (4) 1M x 9 48MB (4) 4M x 9 (4) 4M x 9 (4) 4M x 9 NONE 52MB (4) 1M x 9 (4) 4M x 9 (4) 4M x 9 (4) 4M x 9 Note: Banks 2 & 3 are located on the CPU card. DRAM CONFIGURATION (CON’T) Size Bank 0 Bank 1 Bank 2 Bank 3 52MB (4) 4M x 9 (4) 4M x 9 (4) 4M x 9 (4) 1M x 9 64MB (4) 4M x 9 (4) 4M x 9 (4) 4M x 9 (4) 4M x 9 64MB (4) 16M x 9 NONE NONE NONE 128MB (4) 16M x 9 (4) 16M x 9 NONE NONE 192MB (4) 16M x 9 (4) 16M x 9 (4) 16M x 9 NONE 256MB (4) 16M x 9 (4) 16M x 9 (4) 16M x 9 (4) 16M x 9 Note: Banks 2 & 3 are located on the CPU card. CPU SPEED CONFIGURATION Speed JP6 JP7 25MHz Open Open 33MHz Open Closed 50iMHz Open Open 50MHz Closed Closed 66iMHz Open Closed Note: See also JP1 in User Configurable Settings. PARALLEL PORT CONFIGURATION LPT IRQ I/O address PRT P0 P1 N/A N/A Disabled N/A 1 & 2 1 & 2 LPT1 IRQ7 3BCh 2 & 3 2 & 3 1 & 2 LPT2 IRQ5 278h 1 & 2 2 & 3 2 & 3 LPT3 IRQ7 378h 2 & 3 1 & 2 2 & 3 Note: Pins designated should be in the closed position SERIAL PORT 1 CONFIGURATION COM IRQ I/O address PJ6 S0 S1 N/A N/A Disabled N/A 1 & 2 1 & 2 COM 1 IRQ4 3F8h 1 & 2 2 & 3 2 & 3 COM 2 IRQ3 2F8h 1 & 3 1 & 2 2 & 3 Note: Pins designated should be in the closed position SERIAL PORT 2 CONFIGURATION COM IRQ I/O address PJ6 S2 S3 N/A N/A Disabled N/A 1 & 2 1 & 2 COM 1 IRQ4 3F8h 2 & 4 1 & 2 2 & 3 COM 2 IRQ3 2F8h 3 & 4 2 & 3 2 & 3 Note: Pins designated should be in the closed position [Image] USER CONFIGURABLE SETTINGS Function Jumper Position » Factory configured - do not JP8 N/A alter » Factory configured - do not JP77 N/A alter CACHE CONFIGURATION Size Bank 0 Bank 1 64KB (4) 8K x 8 (4) 8K x 8 128KB (4) 32K x 8 NONE 256KB (4) 32K x 8 (4) 32K x 8 512KB (4) 128K x 8 NONE CACHE TAG CONFIGURATION Size TAG (U54) TAG (U55) TAG (U56) TAG (U72) 64KB NONE (1) 8K x 8 NONE (1) 16K/64K x 1 128KB NONE (1) 8K x 8 NONE (1) 16K/64K x 1 256KB NONE (1) 8K x 8 (1) 8K x 8 (1) 16K/64K x 8 512KB NONE (1) 32K x 8 NONE (1) 64K x 1 CACHE JUMPER CONFIGURATION Size JP2 JP3 JP4 JP5 JP16 JP17 JP18 64KB 2 & Open Open Open Open Open Open 3 128KB 1 & Closed Open Open Closed Open Open 2 256KB 2 & Closed Closed Open Closed Closed Open 3 512KB 1 & Closed Closed Closed Closed Closed Closed 2 Note: Pins designated should be in the closed position. CPU TYPE CONFIGURATION Type JP10 JP11 80486SX pins 2 & 3 closed Open 80487SX pins 1 & 2, 3 & 4 pins 1 & 2 closed closed 80486DX pins 1 & 2, 3 & 4 pins 2 & 3 closed closed 80486DX2 pins 1 & 2, 3 & 4 pins 2 & 3 closed closed Pentium Overdrive pins 1 & 2, 3 & 4 pins 1 & 2 closed closed CPU SPEED CONFIGURATION Speed JP12 25MHz pins 2 & 3 closed 33MHz pins 2 & 3 closed 50iMHz pins 2 & 3 closed 50MHz pins 1 & 2 closed 66iMHz pins 2 & 3 closed BASE MEMORY CONFIGURATION Size JP20 JP21 384KB pins 2 & 3 closed Open 512KB pins 2 & 3 closed Closed 640KB pins 1 & 2 closed Any setting